still problems with intel video

Hi. I still have problems with a very slow display after logging out of an X 
session and/or switching VTYs. The problem goes away if I add 
hw.pci.enable_msi=0 to /boot/loader.conf.

Last csupped Mar 26 09:49 CET.

System is Dell optiplex 745. Has built-in Intel Graphics Media Accelerator 950

Anything I can do to help solve this problem?